DRINKING WATER
Empowering Water Utilities Through Meter Data
Modernizing water infrastructure requires robust digital systems to manage high-volume metering data. Centralizing this information enables precise leak detection, accurate water balancing, and proactive customer engagement, ultimately driving operational efficiency and long-term sustainability goals.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
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Protecting Our Water – Keep Chemicals In The Tank
Leaking or overfilled tanks can cause environmental problems, contaminate drinking water, and cost a company millions of dollars. Proper instrumentation, monitoring and control can prevent these problems. By Bill Sholette, Level Products Business Manager, and Ricardo Chavez, Solutions Business Manager, Endress+Hauser
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Smarter Control For Seasonal Demand: How Aquana Smart Valves Help Utilities Manage Frequent Water Shutoffs
Managing water service in high-turnover communities requires balancing operational costs with infrastructure protection. Remote control technology enables utilities to mitigate the risks of frequent shutoffs, reduce labor-intensive field visits, and detect leaks in vacant properties.
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Water Loss Control For Small Water Systems – Part 2
This article will tackle the true meaning of water loss in terms of real loss, using scenarios and industry technologies to help us discover real loss.
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What The Industry Is Saying About The EPA Contaminant Candidate List 5
It is assumed that most individuals involved in the advocacy, treatment, and regulation of drinking water in the U.S. have similar opinions on the importance of delivering clean, safe drinking water. But determining how regulatory steps regarding daily practices at water treatment plants (WTPs) should evolve tends to reveal some differences in opinion. Here are some recent industry reactions to the proposed Drinking Water Contaminant Candidate List 5 (CCL 5).
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AltaPac™ AP-II Ultrafiltration Membrane Case Study
Cibola is a small community located in Southern Arizona along the Colorado River. With a growing population, the community decided to install a centralized water system to replace individual wells.
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Managing Water Loss In Four Easy Steps
A practical approach to detecting leaks and reducing non-revenue water.
Water utilities are charged with an incredibly important task – providing safe and affordable water to communities in the face of aging infrastructure, funding gaps, and changing regulatory requirements. Specifically, when considering water loss control, leakage, and operational inefficiencies, costs may appear to be unaffordable.
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Direct Burial Meters Offer Significant Savings
Most pipelines are below grade, so vaults have traditionally been installed to provide access to any place where a meter and valve are necessary. Vault pits tend to be large, and the installation is by far the biggest expense of a metering project. The good news is that direct burial metering options can greatly simplify the installation requirements, significantly lowering the costs, while also boosting safety.
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Sniffer Dogs Now Being Used To Detect Water Main Leaks
Sniffer dogs have been used for a while in the oil and gas industry to find leaks. But recently, dogs have begun to be used to find leaks in water mains.
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The 9 Frequently Asked Questions About Manganese In Water
Manganese is one of the most abundant metals in our Earth’s crust, often occurring with iron. It is a component of over 100 minerals but is not found naturally in its pure elemental form. Manganese is an element essential to the proper function for both humans and animals, as it is required for the functioning of many cellular enzymes. At high concentrations in water however it can cause a bitter taste and stain fixtures, appliances and laundry.
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A Pandemic Of Another Kind: Addressing The Issues Of Clean Water Scarcity
As the coronavirus pandemic in some form continues to move across the world, health professionals are continually reminding us to exercise good hygiene and keep our hands clean. Easy enough, if you have access to a clean source of water. However, according to the USA Water Alliance, there are more than three million people presently that are without a dependable source of safe drinking water in the US. Around the world, this is also a bigger issue, as many people lack access to a source of safe drinking water to maintain their hygiene. Ongoing developments to ensure global water security, as well as provisions for wastewater sanitation services to avoid polluting water sources have been slowly adopted. Droughts and water scarcity have become issues that we are dealing with in the US and around the world.
DRINKING WATER APPLICATION NOTES
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Irrigation Technology In Agriculture: How New Technologies Overcome Challenges1/29/2019
As the world’s population continues to increase at a fast pace, more food and water will be needed to sustain humanity. In the past 50 years, we have tripled our need for water and food, and there are no signs of this trend slowing down. As a result of these conditions, smart, innovative agricultural practices are needed now more than ever. Technology can, and already does, aid agriculture in innumerable ways. One prominent part of agriculture that can use technological innovation to increase efficiency and effectiveness is irrigation.
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'TOTEX' Is Key When Purchasing Instrumentation4/29/2021
There’s a lot to be considered in the price tag of an ultrasonic instrument. Derek Moore from Siemens explains how the historical way of thinking only of capital costs needs to change to the more holistic approach of total expenditures.
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Bringing Efficiency And New Confidence To BOD₅ Analysis2/4/2013
Biochemical Oxygen Demand (BOD) analysis is the test everyone loves to hate—and for compelling reasons.
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SensyMaster Thermal Mass Flowmeter8/3/2021
SensyMaster helps to improve the operating costs of the most cost intensive process in sewage plants: Aeration. High-measuring performance and state of the art technology helps customers increase plant efficiency.
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Real-Time Conductivity Monitoring Estimates Chloride Levels In Minnesota Watershed By Using The Aqua TROLL 20011/18/2011Monitoring deicing chemical levels can help researchers, city governments, and regulatory agencies understand runoff impacts on surface water, groundwater, and surrounding environments.
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Immediate pH Correction For Fluctuating Flow2/19/2014
In a number of water, wastewater and industrial process applications, pH is one of the most critical and highly sensitive analytical measurements. Examples of critical pH applications include: Reverse Osmosis (RO) systems in which a controlled feed of caustic solution is typically added to the feed stream in order to convert a portion of dissolved carbon dioxide into bicarbonate precipitate allowing for removal by the RO membrane. By Rafik H. Bishara, Steve Jacobs, and Dan Bell
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Application Note: Turbidity Monitoring In Drinking Water Treatment Plants8/30/2005
Turbidity, or the relative clarity of a liquid (in this case drinking water), is caused by the presence of microscopic particles such as clay, silt, or other fine undissolved matter
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Drinking Water Testing By Ion Chromatography Using Ultrapure Water9/29/2022
This application note demonstrates the suitability of ultrapure water produced by a Milli-Q IQ 7000 water purification system for the IC analyses of inorganic ions and DBPs in drinking water.
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Application Note: Troubleshooting A pH Electrode1/26/2011
Many factors affect performance of a pH electrode. When performance degrades, it is always a challenge for the analyst to identify the cause. Common troubleshooting procedures, which include evaluation of slope, electrode drift, time response, and accuracy, take considerable time. By Thermo Fisher Scientific
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Background And Summary Of Tests For The 2000PV Restraint4/13/2021
The 2000PV is a restraint for PVC pipe and the standardized mechanical joint. This product is the result of years of testing and evaluation and its performance has been proven by thousands of hours of proof tests, as well as third-party evaluations. This report describes the 2000PV through the 12" size.
LATEST INSIGHTS ON DRINKING WATER
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Restoring eelgrass beds is critical because they provide habitat for many kinds of marine life, improve water quality by filtering out pollution, and the plant’s root system stabilizes the sediment on the seafloor, protecting shorelines from erosion.
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No matter where you live in the U.S., you have likely seen headlines about PFAS being detected in everything from drinking water to fish to milk to human bodies. Now, PFAS are posing a threat to the Great Lakes, one of America’s most vital water resources.
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When people think about agricultural pollution, they often picture what is easy to see: fertilizer spreaders crossing fields or muddy runoff after a heavy storm. However, a much more significant threat is quietly and invisibly building in the ground.
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As water systems become more circular and complex, understanding and managing the subsurface — the hidden half of the water cycle — is becoming a critical enabler of resilience. This article explores the key trends shaping this new reality, from tackling “forever chemicals” to the water strategies redefining heavy industry.
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The White House has finalized plans to roll back rules under the National Environmental Policy Act (NEPA), narrowing its focus and limiting what the current administration claims are needless delays for federal approval of water, energy, and other infrastructure plans. For water and wastewater utilities, the changes could speed up permitting for critical projects, although experts warn the tradeoffs could do more harm than good.
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Setting Global Standards: Inside North America's Only Full-Scale UV Disinfection Validation FacilityPortland's industry-leading facility reaches 100 reactor validations in 23 years.
ABOUT DRINKING WATER
In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA).
Drinking water considerations can be divided into three core areas of concern:
- Source water for a community’s drinking water supply
- Drinking water treatment of source water
- Distribution of treated drinking water to consumers
Drinking Water Sources
Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater.
Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.
Drinking Water Treatment
Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.
There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.
The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.
The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.
During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.
Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.
Drinking Water Distribution
Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.
A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.
Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.